Jul 5, 2022
A cluster of thunderstorms developed across eastern Montana and the western Dakotas during the morning hours. These storms organized and turned southeastward, feeding on rich inflow of post-frontal air with up to 3000 J/kg of MLCAPE and over 1000 J/kg of DCAPE. Along with strong storm-relative shear, parameters favored development of a strong cold pool and balanced mesocyclone, which spread southeast with the cluster and developed a strong and long-duration severe wind event which traversed Sout
Source: NOAA National Weather Service Storm Events Database (event 1049818). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Minnehaha County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.